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<div id="layout">
  <div id="layout-content"><div id="curl.constants" class="appendix">
 <h1>预定义常量</h1>

 <p class="simpara">下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。</p>
 <p class="para">
  <span class="function"><a href="function.curl-setopt.html" class="function">curl_setopt()</a></span>、<span class="function"><a href="function.curl-multi-setopt.html" class="function">curl_multi_setopt()</a></span>、
  <span class="function"><a href="function.curl-getinfo.html" class="function">curl_getinfo()</a></span> 文档中常量的描述和使用。
 </p>
 <dl>
  
   <dt id="constant.curlopt-autoreferer">
    <strong><code>CURLOPT_AUTOREFERER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.1.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-cookiesession">
    <strong><code>CURLOPT_COOKIESESSION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.1.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-dns-use-global-cache">
    <strong><code>CURLOPT_DNS_USE_GLOBAL_CACHE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-dns-cache-timeout">
    <strong><code>CURLOPT_DNS_CACHE_TIMEOUT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
   
     <dt id="constant.curlopt-ftp-ssl">
       <strong><code>CURLOPT_FTP_SSL</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.2.0
       </span>
     </dd>

   
   
     <dt id="constant.curlftp-create-dir">
       <strong><code>CURLFTP_CREATE_DIR</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 7.0.7 and cURL 7.19.3
       </span>
     </dd>

   
   
     <dt id="constant.curlftp-create-dir-none">
       <strong><code>CURLFTP_CREATE_DIR_NONE</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 7.0.7 and cURL 7.19.3
       </span>
     </dd>

   
   
     <dt id="constant.curlftp-create-dir-retry">
       <strong><code>CURLFTP_CREATE_DIR_RETRY</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 7.0.7 and cURL 7.19.3
       </span>
     </dd>

   
   
     <dt id="constant.curlftpssl-try">
       <strong><code>CURLFTPSSL_TRY</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.2.0
       </span>
     </dd>

   
   
     <dt id="constant.curlftpssl-all">
       <strong><code>CURLFTPSSL_ALL</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.2.0
       </span>
     </dd>

   
   
     <dt id="constant.curlftpssl-control">
       <strong><code>CURLFTPSSL_CONTROL</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.2.0
       </span>
     </dd>

   
   
     <dt id="constant.curlftpssl-none">
       <strong><code>CURLFTPSSL_NONE</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.2.0
       </span>
     </dd>

   
   
     <dt id="constant.curlopt-private">
       <strong><code>CURLOPT_PRIVATE</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.2.4
       </span>
     </dd>

   
   
     <dt id="constant.curlopt-ftpsslauth">
       <strong><code>CURLOPT_FTPSSLAUTH</code></strong>
       (<span class="type">integer</span>)
     </dt>

     <dd>

       <span class="simpara">
         Available since PHP 5.1.0
       </span>
     </dd>

   
  
   <dt id="constant.curlopt-port">
    <strong><code>CURLOPT_PORT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-file">
    <strong><code>CURLOPT_FILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  

  
   <dt id="constant.curlopt-infile">
    <strong><code>CURLOPT_INFILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-infilesize">
    <strong><code>CURLOPT_INFILESIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-url">
    <strong><code>CURLOPT_URL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy">
    <strong><code>CURLOPT_PROXY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-verbose">
    <strong><code>CURLOPT_VERBOSE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-header">
    <strong><code>CURLOPT_HEADER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-httpheader">
    <strong><code>CURLOPT_HTTPHEADER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-noprogress">
    <strong><code>CURLOPT_NOPROGRESS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-nobody">
    <strong><code>CURLOPT_NOBODY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-failonerror">
    <strong><code>CURLOPT_FAILONERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-upload">
    <strong><code>CURLOPT_UPLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-post">
    <strong><code>CURLOPT_POST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftplistonly">
    <strong><code>CURLOPT_FTPLISTONLY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftpappend">
    <strong><code>CURLOPT_FTPAPPEND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftp-create-missing-dirs">
    <strong><code>CURLOPT_FTP_CREATE_MISSING_DIRS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-netrc">
    <strong><code>CURLOPT_NETRC</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-followlocation">
    <strong><code>CURLOPT_FOLLOWLOCATION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     This constant is not available when <a href="ini.core.html#ini.open-basedir" class="link">open_basedir</a> 
     is enabled.
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftpascii">
    <strong><code>CURLOPT_FTPASCII</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-put">
    <strong><code>CURLOPT_PUT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-mute">
    <strong><code>CURLOPT_MUTE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-userpwd">
    <strong><code>CURLOPT_USERPWD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxyuserpwd">
    <strong><code>CURLOPT_PROXYUSERPWD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-range">
    <strong><code>CURLOPT_RANGE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-timeout">
    <strong><code>CURLOPT_TIMEOUT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-timeout-ms">
    <strong><code>CURLOPT_TIMEOUT_MS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tcp-nodelay">
    <strong><code>CURLOPT_TCP_NODELAY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.2.1
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-postfields">
    <strong><code>CURLOPT_POSTFIELDS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-progressfunction">
    <strong><code>CURLOPT_PROGRESSFUNCTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.3.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-referer">
    <strong><code>CURLOPT_REFERER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-useragent">
    <strong><code>CURLOPT_USERAGENT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftpport">
    <strong><code>CURLOPT_FTPPORT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftp-use-epsv">
    <strong><code>CURLOPT_FTP_USE_EPSV</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-low-speed-limit">
    <strong><code>CURLOPT_LOW_SPEED_LIMIT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-low-speed-time">
    <strong><code>CURLOPT_LOW_SPEED_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-resume-from">
    <strong><code>CURLOPT_RESUME_FROM</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-cookie">
    <strong><code>CURLOPT_COOKIE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-cookielist">
    <strong><code>CURLOPT_COOKIELIST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.14.1
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslcert">
    <strong><code>CURLOPT_SSLCERT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslcertpasswd">
    <strong><code>CURLOPT_SSLCERTPASSWD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-writeheader">
    <strong><code>CURLOPT_WRITEHEADER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-verifyhost">
    <strong><code>CURLOPT_SSL_VERIFYHOST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-cookiefile">
    <strong><code>CURLOPT_COOKIEFILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion">
    <strong><code>CURLOPT_SSLVERSION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-default">
    <strong><code>CURL_SSLVERSION_DEFAULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-tlsv1">
    <strong><code>CURL_SSLVERSION_TLSv1</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-sslv2">
    <strong><code>CURL_SSLVERSION_SSLv2</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-sslv3">
    <strong><code>CURL_SSLVERSION_SSLv3</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-tlsv1-0">
    <strong><code>CURL_SSLVERSION_TLSv1_0</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
      Available since PHP 5.5.19 and 5.6.3
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-tlsv1-1">
    <strong><code>CURL_SSLVERSION_TLSv1_1</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
      Available since PHP 5.5.19 and 5.6.3
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslversion-tlsv1-2">
    <strong><code>CURL_SSLVERSION_TLSv1_2</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
      Available since PHP 5.5.19 and 5.6.3
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-timecondition">
    <strong><code>CURLOPT_TIMECONDITION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">

    </span>
   </dd>

  
  
   <dt id="constant.curlopt-timevalue">
    <strong><code>CURLOPT_TIMEVALUE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-customrequest">
    <strong><code>CURLOPT_CUSTOMREQUEST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-stderr">
    <strong><code>CURLOPT_STDERR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-transfertext">
    <strong><code>CURLOPT_TRANSFERTEXT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-returntransfer">
    <strong><code>CURLOPT_RETURNTRANSFER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-quote">
    <strong><code>CURLOPT_QUOTE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-postquote">
    <strong><code>CURLOPT_POSTQUOTE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-interface">
    <strong><code>CURLOPT_INTERFACE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-krb4level">
    <strong><code>CURLOPT_KRB4LEVEL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-httpproxytunnel">
    <strong><code>CURLOPT_HTTPPROXYTUNNEL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-filetime">
    <strong><code>CURLOPT_FILETIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-writefunction">
    <strong><code>CURLOPT_WRITEFUNCTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-readfunction">
    <strong><code>CURLOPT_READFUNCTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-passwdfunction">
    <strong><code>CURLOPT_PASSWDFUNCTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-headerfunction">
    <strong><code>CURLOPT_HEADERFUNCTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-maxredirs">
    <strong><code>CURLOPT_MAXREDIRS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-maxconnects">
    <strong><code>CURLOPT_MAXCONNECTS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-closepolicy">
    <strong><code>CURLOPT_CLOSEPOLICY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Removed in PHP 5.6.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-fresh-connect">
    <strong><code>CURLOPT_FRESH_CONNECT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-forbid-reuse">
    <strong><code>CURLOPT_FORBID_REUSE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-random-file">
    <strong><code>CURLOPT_RANDOM_FILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-egdsocket">
    <strong><code>CURLOPT_EGDSOCKET</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-connecttimeout">
    <strong><code>CURLOPT_CONNECTTIMEOUT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-connecttimeout-ms">
    <strong><code>CURLOPT_CONNECTTIMEOUT_MS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-verifypeer">
    <strong><code>CURLOPT_SSL_VERIFYPEER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-cainfo">
    <strong><code>CURLOPT_CAINFO</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-capath">
    <strong><code>CURLOPT_CAPATH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-cookiejar">
    <strong><code>CURLOPT_COOKIEJAR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-cipher-list">
    <strong><code>CURLOPT_SSL_CIPHER_LIST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-binarytransfer">
    <strong><code>CURLOPT_BINARYTRANSFER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-nosignal">
    <strong><code>CURLOPT_NOSIGNAL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxytype">
    <strong><code>CURLOPT_PROXYTYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available as of cURL 7.10.
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-buffersize">
    <strong><code>CURLOPT_BUFFERSIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">

    </span>
   </dd>

  
  
   <dt id="constant.curlopt-httpget">
    <strong><code>CURLOPT_HTTPGET</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-http-version">
    <strong><code>CURLOPT_HTTP_VERSION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslkey">
    <strong><code>CURLOPT_SSLKEY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslkeytype">
    <strong><code>CURLOPT_SSLKEYTYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslkeypasswd">
    <strong><code>CURLOPT_SSLKEYPASSWD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslengine">
    <strong><code>CURLOPT_SSLENGINE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslengine-default">
    <strong><code>CURLOPT_SSLENGINE_DEFAULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sslcerttype">
    <strong><code>CURLOPT_SSLCERTTYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-crlf">
    <strong><code>CURLOPT_CRLF</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-encoding">
    <strong><code>CURLOPT_ENCODING</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxyport">
    <strong><code>CURLOPT_PROXYPORT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-unrestricted-auth">
    <strong><code>CURLOPT_UNRESTRICTED_AUTH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ftp-use-eprt">
    <strong><code>CURLOPT_FTP_USE_EPRT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-http200aliases">
    <strong><code>CURLOPT_HTTP200ALIASES</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-httpauth">
    <strong><code>CURLOPT_HTTPAUTH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-basic">
    <strong><code>CURLAUTH_BASIC</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-digest">
    <strong><code>CURLAUTH_DIGEST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-gssnegotiate">
    <strong><code>CURLAUTH_GSSNEGOTIATE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-negotiate">
    <strong><code>CURLAUTH_NEGOTIATE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.38.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-ntlm">
    <strong><code>CURLAUTH_NTLM</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-ntlm-wb">
    <strong><code>CURLAUTH_NTLM_WB</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.22.0
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-any">
    <strong><code>CURLAUTH_ANY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-anysafe">
    <strong><code>CURLAUTH_ANYSAFE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxyauth">
    <strong><code>CURLOPT_PROXYAUTH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-max-recv-speed-large">
    <strong><code>CURLOPT_MAX_RECV_SPEED_LARGE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.4.0 and cURL 7.15.5
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-max-send-speed-large">
    <strong><code>CURLOPT_MAX_SEND_SPEED_LARGE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.4.0 and cURL 7.15.5
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-headeropt">
    <strong><code>CURLOPT_HEADEROPT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.37.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxyheader">
    <strong><code>CURLOPT_PROXYHEADER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.37.0
    </span>
   </dd>

  
  
   <dt id="constant.curlclosepolicy-least-recently-used">
    <strong><code>CURLCLOSEPOLICY_LEAST_RECENTLY_USED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Removed in PHP 5.6.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlclosepolicy-least-traffic">
    <strong><code>CURLCLOSEPOLICY_LEAST_TRAFFIC</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Removed in PHP 5.6.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlclosepolicy-slowest">
    <strong><code>CURLCLOSEPOLICY_SLOWEST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Removed in PHP 5.6.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlclosepolicy-callback">
    <strong><code>CURLCLOSEPOLICY_CALLBACK</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Removed in PHP 5.6.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlclosepolicy-oldest">
    <strong><code>CURLCLOSEPOLICY_OLDEST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Removed in PHP 5.6.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-private">
    <strong><code>CURLINFO_PRIVATE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.2.4
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-effective-url">
    <strong><code>CURLINFO_EFFECTIVE_URL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-http-code">
    <strong><code>CURLINFO_HTTP_CODE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     As of PHP 5.5.0 and cURL 7.10.8, this is a legacy alias of
     <strong><code>CURLINFO_RESPONSE_CODE</code></strong>
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-response-code">
    <strong><code>CURLINFO_RESPONSE_CODE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.10.8
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-header-out">
    <strong><code>CURLINFO_HEADER_OUT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.1.3
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-header-size">
    <strong><code>CURLINFO_HEADER_SIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-request-size">
    <strong><code>CURLINFO_REQUEST_SIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-total-time">
    <strong><code>CURLINFO_TOTAL_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-namelookup-time">
    <strong><code>CURLINFO_NAMELOOKUP_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-connect-time">
    <strong><code>CURLINFO_CONNECT_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-pretransfer-time">
    <strong><code>CURLINFO_PRETRANSFER_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-size-upload">
    <strong><code>CURLINFO_SIZE_UPLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-size-download">
    <strong><code>CURLINFO_SIZE_DOWNLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-speed-download">
    <strong><code>CURLINFO_SPEED_DOWNLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-speed-upload">
    <strong><code>CURLINFO_SPEED_UPLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-filetime">
    <strong><code>CURLINFO_FILETIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-ssl-verifyresult">
    <strong><code>CURLINFO_SSL_VERIFYRESULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-content-length-download">
    <strong><code>CURLINFO_CONTENT_LENGTH_DOWNLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-content-length-upload">
    <strong><code>CURLINFO_CONTENT_LENGTH_UPLOAD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-starttransfer-time">
    <strong><code>CURLINFO_STARTTRANSFER_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-content-type">
    <strong><code>CURLINFO_CONTENT_TYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-redirect-time">
    <strong><code>CURLINFO_REDIRECT_TIME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-redirect-count">
    <strong><code>CURLINFO_REDIRECT_COUNT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-redirect-url">
    <strong><code>CURLINFO_REDIRECT_URL</code></strong>
    (<span class="type">string</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.3.7
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-primary-ip">
    <strong><code>CURLINFO_PRIMARY_IP</code></strong>
    (<span class="type">string</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.4.7
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-primary-port">
    <strong><code>CURLINFO_PRIMARY_PORT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.4.7
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-local-ip">
    <strong><code>CURLINFO_LOCAL_IP</code></strong>
    (<span class="type">string</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.4.7
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-local-port">
    <strong><code>CURLINFO_LOCAL_PORT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.4.7
    </span>
   </dd>

  
  
   <dt id="constant.curl-push-ok">
    <strong><code>CURL_PUSH_OK</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.1.0 and cURL 7.44.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-push-deny">
    <strong><code>CURL_PUSH_DENY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.1.0 and cURL 7.44.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-redir-post-301">
    <strong><code>CURL_REDIR_POST_301</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.18.2
    </span>
   </dd>

  
  
   <dt id="constant.curl-redir-post-302">
    <strong><code>CURL_REDIR_POST_302</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.18.2
    </span>
   </dd>

  
  
   <dt id="constant.curl-redir-post-303">
    <strong><code>CURL_REDIR_POST_303</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.25.1
    </span>
   </dd>

  
  
   <dt id="constant.curl-redir-post-all">
    <strong><code>CURL_REDIR_POST_ALL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.18.2
    </span>
   </dd>

  
  
   <dt id="constant.curl-timecond-ifmodsince">
    <strong><code>CURL_TIMECOND_IFMODSINCE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">

    </span>
   </dd>

  
  
   <dt id="constant.curl-timecond-ifunmodsince">
    <strong><code>CURL_TIMECOND_IFUNMODSINCE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">

    </span>
   </dd>

  
  
   <dt id="constant.curl-timecond-lastmod">
    <strong><code>CURL_TIMECOND_LASTMOD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">

    </span>
   </dd>

  
  
   <dt id="constant.curl-version-altsvc">
    <strong><code>CURL_VERSION_ALTSVC</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.6 and cURL 7.64.1
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-asynchdns">
    <strong><code>CURL_VERSION_ASYNCHDNS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.10.7
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-brotli">
    <strong><code>CURL_VERSION_BROTLI</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.57.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-conv">
    <strong><code>CURL_VERSION_CONV</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.15.4
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-curldebug">
    <strong><code>CURL_VERSION_CURLDEBUG</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.6 and cURL 7.19.6
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-debug">
    <strong><code>CURL_VERSION_DEBUG</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.10.6
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-gssapi">
    <strong><code>CURL_VERSION_GSSAPI</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.38.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-gssnegotiate">
    <strong><code>CURL_VERSION_GSSNEGOTIATE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.10.6 (deprecated since 7.38.0)
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-idn">
    <strong><code>CURL_VERSION_IDN</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.12.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-multi-ssl">
    <strong><code>CURL_VERSION_MULTI_SSL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.56.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-ntlm">
    <strong><code>CURL_VERSION_NTLM</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.10.6
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-ntlm-wb">
    <strong><code>CURL_VERSION_NTLM_WB</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.22.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-ipv6">
    <strong><code>CURL_VERSION_IPV6</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-kerberos4">
    <strong><code>CURL_VERSION_KERBEROS4</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-kerberos5">
    <strong><code>CURL_VERSION_KERBEROS5</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.40.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-http2">
    <strong><code>CURL_VERSION_HTTP2</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.24 and 5.6.8 and cURL 7.33.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-psl">
    <strong><code>CURL_VERSION_PSL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.6 and cURL 7.47.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-spnego">
    <strong><code>CURL_VERSION_SPNEGO</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.10.8
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-sspi">
    <strong><code>CURL_VERSION_SSPI</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.13.2
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-ssl">
    <strong><code>CURL_VERSION_SSL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-tlsauth-srp">
    <strong><code>CURL_VERSION_TLSAUTH_SRP</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.21.4
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-unix-sockets">
    <strong><code>CURL_VERSION_UNIX_SOCKETS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.40.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-libz">
    <strong><code>CURL_VERSION_LIBZ</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlversion-now">
    <strong><code>CURLVERSION_NOW</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ok">
    <strong><code>CURLE_OK</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-unsupported-protocol">
    <strong><code>CURLE_UNSUPPORTED_PROTOCOL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-failed-init">
    <strong><code>CURLE_FAILED_INIT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-url-malformat">
    <strong><code>CURLE_URL_MALFORMAT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-url-malformat-user">
    <strong><code>CURLE_URL_MALFORMAT_USER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-couldnt-resolve-proxy">
    <strong><code>CURLE_COULDNT_RESOLVE_PROXY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-couldnt-resolve-host">
    <strong><code>CURLE_COULDNT_RESOLVE_HOST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-couldnt-connect">
    <strong><code>CURLE_COULDNT_CONNECT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-weird-server-reply">
    <strong><code>CURLE_FTP_WEIRD_SERVER_REPLY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-access-denied">
    <strong><code>CURLE_FTP_ACCESS_DENIED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-user-password-incorrect">
    <strong><code>CURLE_FTP_USER_PASSWORD_INCORRECT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-weird-pass-reply">
    <strong><code>CURLE_FTP_WEIRD_PASS_REPLY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-weird-user-reply">
    <strong><code>CURLE_FTP_WEIRD_USER_REPLY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-weird-pasv-reply">
    <strong><code>CURLE_FTP_WEIRD_PASV_REPLY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-weird-227-format">
    <strong><code>CURLE_FTP_WEIRD_227_FORMAT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-cant-get-host">
    <strong><code>CURLE_FTP_CANT_GET_HOST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-cant-reconnect">
    <strong><code>CURLE_FTP_CANT_RECONNECT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-couldnt-set-binary">
    <strong><code>CURLE_FTP_COULDNT_SET_BINARY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-partial-file">
    <strong><code>CURLE_PARTIAL_FILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-couldnt-retr-file">
    <strong><code>CURLE_FTP_COULDNT_RETR_FILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-write-error">
    <strong><code>CURLE_FTP_WRITE_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-quote-error">
    <strong><code>CURLE_FTP_QUOTE_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-http-not-found">
    <strong><code>CURLE_HTTP_NOT_FOUND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-write-error">
    <strong><code>CURLE_WRITE_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-malformat-user">
    <strong><code>CURLE_MALFORMAT_USER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-couldnt-stor-file">
    <strong><code>CURLE_FTP_COULDNT_STOR_FILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-read-error">
    <strong><code>CURLE_READ_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-out-of-memory">
    <strong><code>CURLE_OUT_OF_MEMORY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-operation-timeouted">
    <strong><code>CURLE_OPERATION_TIMEOUTED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-couldnt-set-ascii">
    <strong><code>CURLE_FTP_COULDNT_SET_ASCII</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-port-failed">
    <strong><code>CURLE_FTP_PORT_FAILED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-couldnt-use-rest">
    <strong><code>CURLE_FTP_COULDNT_USE_REST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-couldnt-get-size">
    <strong><code>CURLE_FTP_COULDNT_GET_SIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-http-range-error">
    <strong><code>CURLE_HTTP_RANGE_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-http-post-error">
    <strong><code>CURLE_HTTP_POST_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-connect-error">
    <strong><code>CURLE_SSL_CONNECT_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-bad-download-resume">
    <strong><code>CURLE_FTP_BAD_DOWNLOAD_RESUME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-file-couldnt-read-file">
    <strong><code>CURLE_FILE_COULDNT_READ_FILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ldap-cannot-bind">
    <strong><code>CURLE_LDAP_CANNOT_BIND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ldap-search-failed">
    <strong><code>CURLE_LDAP_SEARCH_FAILED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-library-not-found">
    <strong><code>CURLE_LIBRARY_NOT_FOUND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-function-not-found">
    <strong><code>CURLE_FUNCTION_NOT_FOUND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-aborted-by-callback">
    <strong><code>CURLE_ABORTED_BY_CALLBACK</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-bad-function-argument">
    <strong><code>CURLE_BAD_FUNCTION_ARGUMENT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-bad-calling-order">
    <strong><code>CURLE_BAD_CALLING_ORDER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-http-port-failed">
    <strong><code>CURLE_HTTP_PORT_FAILED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-bad-password-entered">
    <strong><code>CURLE_BAD_PASSWORD_ENTERED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-too-many-redirects">
    <strong><code>CURLE_TOO_MANY_REDIRECTS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-unknown-telnet-option">
    <strong><code>CURLE_UNKNOWN_TELNET_OPTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-telnet-option-syntax">
    <strong><code>CURLE_TELNET_OPTION_SYNTAX</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-obsolete">
    <strong><code>CURLE_OBSOLETE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-peer-certificate">
    <strong><code>CURLE_SSL_PEER_CERTIFICATE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-got-nothing">
    <strong><code>CURLE_GOT_NOTHING</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-engine-notfound">
    <strong><code>CURLE_SSL_ENGINE_NOTFOUND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-engine-setfailed">
    <strong><code>CURLE_SSL_ENGINE_SETFAILED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-send-error">
    <strong><code>CURLE_SEND_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-recv-error">
    <strong><code>CURLE_RECV_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-share-in-use">
    <strong><code>CURLE_SHARE_IN_USE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-certproblem">
    <strong><code>CURLE_SSL_CERTPROBLEM</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-cipher">
    <strong><code>CURLE_SSL_CIPHER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssl-cacert">
    <strong><code>CURLE_SSL_CACERT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-bad-content-encoding">
    <strong><code>CURLE_BAD_CONTENT_ENCODING</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ldap-invalid-url">
    <strong><code>CURLE_LDAP_INVALID_URL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-filesize-exceeded">
    <strong><code>CURLE_FILESIZE_EXCEEDED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ftp-ssl-failed">
    <strong><code>CURLE_FTP_SSL_FAILED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curle-ssh">
    <strong><code>CURLE_SSH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.3.0 and cURL 7.16.1.
    </span>
   </dd>

  
  
   <dt id="constant.curlftpauth-default">
    <strong><code>CURLFTPAUTH_DEFAULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.1.0
    </span>
   </dd>

  
  
   <dt id="constant.curlftpauth-ssl">
    <strong><code>CURLFTPAUTH_SSL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.1.0
    </span>
   </dd>

  
  
   <dt id="constant.curlftpauth-tls">
    <strong><code>CURLFTPAUTH_TLS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.1.0
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-http">
    <strong><code>CURLPROXY_HTTP</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since cURL 7.10.
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-http-1-0">
    <strong><code>CURLPROXY_HTTP_1_0</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.19.3
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-socks4">
    <strong><code>CURLPROXY_SOCKS4</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.2.10 and cURL 7.10.
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-socks5">
    <strong><code>CURLPROXY_SOCKS5</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since cURL 7.10.
    </span>
   </dd>

  
  
   <dt id="constant.curl-netrc-optional">
    <strong><code>CURL_NETRC_OPTIONAL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-netrc-ignored">
    <strong><code>CURL_NETRC_IGNORED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-netrc-required">
    <strong><code>CURL_NETRC_REQUIRED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-none">
    <strong><code>CURL_HTTP_VERSION_NONE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-1-0">
    <strong><code>CURL_HTTP_VERSION_1_0</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-1-1">
    <strong><code>CURL_HTTP_VERSION_1_1</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-2">
    <strong><code>CURL_HTTP_VERSION_2</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.43.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-2-0">
    <strong><code>CURL_HTTP_VERSION_2_0</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.24 and 5.6.8 and cURL 7.33.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-2tls">
    <strong><code>CURL_HTTP_VERSION_2TLS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.47.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-http-version-2-prior-knowledge">
    <strong><code>CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.49.0
    </span>
   </dd>

  
  
   <dt id="constant.curlm-call-multi-perform">
    <strong><code>CURLM_CALL_MULTI_PERFORM</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlm-ok">
    <strong><code>CURLM_OK</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlm-bad-handle">
    <strong><code>CURLM_BAD_HANDLE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlm-bad-easy-handle">
    <strong><code>CURLM_BAD_EASY_HANDLE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlm-out-of-memory">
    <strong><code>CURLM_OUT_OF_MEMORY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlm-internal-error">
    <strong><code>CURLM_INTERNAL_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlmsg-done">
    <strong><code>CURLMSG_DONE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-keypasswd">
    <strong><code>CURLOPT_KEYPASSWD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssh-auth-types">
    <strong><code>CURLOPT_SSH_AUTH_TYPES</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssh-host-public-key-md5">
    <strong><code>CURLOPT_SSH_HOST_PUBLIC_KEY_MD5</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssh-private-keyfile">
    <strong><code>CURLOPT_SSH_PRIVATE_KEYFILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssh-public-keyfile">
    <strong><code>CURLOPT_SSH_PUBLIC_KEYFILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-options">
    <strong><code>CURLOPT_SSL_OPTIONS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.25.0
    </span>
   </dd>

  
  
   <dt id="constant.curlsslopt-allow-beast">
    <strong><code>CURLSSLOPT_ALLOW_BEAST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.25.0
    </span>
   </dd>

  
  
   <dt id="constant.curlsslopt-no-revoke">
    <strong><code>CURLSSLOPT_NO_REVOKE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.44.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-username">
    <strong><code>CURLOPT_USERNAME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.19.1
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-sasl-ir">
    <strong><code>CURLOPT_SASL_IR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.31.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-dns-interface">
    <strong><code>CURLOPT_DNS_INTERFACE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.33.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-dns-local-ip4">
    <strong><code>CURLOPT_DNS_LOCAL_IP4</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.33.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-dns-local-ip6">
    <strong><code>CURLOPT_DNS_LOCAL_IP6</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.33.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-xoauth2-bearer">
    <strong><code>CURLOPT_XOAUTH2_BEARER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.33.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-login-options">
    <strong><code>CURLOPT_LOGIN_OPTIONS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.34.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-expect-100-timeout-ms">
    <strong><code>CURLOPT_EXPECT_100_TIMEOUT_MS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.36.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-enable-alpn">
    <strong><code>CURLOPT_SSL_ENABLE_ALPN</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.36.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-enable-npn">
    <strong><code>CURLOPT_SSL_ENABLE_NPN</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.36.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-pinnedpublickey">
    <strong><code>CURLOPT_PINNEDPUBLICKEY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.39.0
    </span>
   </dd>

  
  
   <dt id="constant.curloptunix-socket-path">
    <strong><code>CURLOPT_UNIX_SOCKET_PATH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.40.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-verifystatus">
    <strong><code>CURLOPT_SSL_VERIFYSTATUS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.41.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-path-as-is">
    <strong><code>CURLOPT_PATH_AS_IS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.42.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssl-falsestart">
    <strong><code>CURLOPT_SSL_FALSESTART</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.42.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-pipewait">
    <strong><code>CURLOPT_PIPEWAIT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.43.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-service-name">
    <strong><code>CURLOPT_PROXY_SERVICE_NAME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.43.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-service-name">
    <strong><code>CURLOPT_SERVICE_NAME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.43.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-default-protocol">
    <strong><code>CURLOPT_DEFAULT_PROTOCOL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.45.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-stream-weight">
    <strong><code>CURLOPT_STREAM_WEIGHT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.46.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tftp-no-options">
    <strong><code>CURLOPT_TFTP_NO_OPTIONS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.48.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-connect-to">
    <strong><code>CURLOPT_CONNECT_TO</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.49.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tcp-fastopen">
    <strong><code>CURLOPT_TCP_FASTOPEN</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.49.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tcp-keepalive">
    <strong><code>CURLOPT_TCP_KEEPALIVE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.25.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tcp-keepidle">
    <strong><code>CURLOPT_TCP_KEEPIDLE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.25.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tcp-keepintvl">
    <strong><code>CURLOPT_TCP_KEEPINTVL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.25.0
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-pipelining">
    <strong><code>CURLMOPT_PIPELINING</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.16.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-maxconnects">
    <strong><code>CURLMOPT_MAXCONNECTS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.16.3.
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-chunk-length-penalty-size">
    <strong><code>CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.30.0
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-content-length-penalty-size">
    <strong><code>CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.30.0
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-max-host-connections">
    <strong><code>CURLMOPT_MAX_HOST_CONNECTIONS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.30.0
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-max-pipeline-length">
    <strong><code>CURLMOPT_MAX_PIPELINE_LENGTH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.30.0
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-max-total-connections">
    <strong><code>CURLMOPT_MAX_TOTAL_CONNECTIONS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.30.0
    </span>
   </dd>

  
  
   <dt id="constant.curlmopt-pushfunction">
    <strong><code>CURLMOPT_PUSHFUNCTION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.1.0 and cURL 7.44.0
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-agent">
    <strong><code>CURLSSH_AUTH_AGENT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.28.0
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-any">
    <strong><code>CURLSSH_AUTH_ANY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-default">
    <strong><code>CURLSSH_AUTH_DEFAULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-host">
    <strong><code>CURLSSH_AUTH_HOST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-keyboard">
    <strong><code>CURLSSH_AUTH_KEYBOARD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-none">
    <strong><code>CURLSSH_AUTH_NONE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-password">
    <strong><code>CURLSSH_AUTH_PASSWORD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-publickey">
    <strong><code>CURLSSH_AUTH_PUBLICKEY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     
    </span>
   </dd>

  
  
   <dt id="constant.curl-wrappers-enabled">
    <strong><code>CURL_WRAPPERS_ENABLED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Defined if PHP was configured with
     <strong class="option configure">--with-curlwrappers</strong>.
     Moved to PECL in PHP 5.5.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpause-all">
    <strong><code>CURLPAUSE_ALL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpause-cont">
    <strong><code>CURLPAUSE_CONT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpause-recv">
    <strong><code>CURLPAUSE_RECV</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpause-recv-cont">
    <strong><code>CURLPAUSE_RECV_CONT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpause-send">
    <strong><code>CURLPAUSE_SEND</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpause-send-cont">
    <strong><code>CURLPAUSE_SEND_CONT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.0 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpipe-nothing">
    <strong><code>CURLPIPE_NOTHING</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.0 and cURL 7.43.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpipe-http1">
    <strong><code>CURLPIPE_HTTP1</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.0 and cURL 7.43.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlpipe-multiplex">
    <strong><code>CURLPIPE_MULTIPLEX</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.0 and cURL 7.43.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-socks4a">
    <strong><code>CURLPROXY_SOCKS4A</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.23 and PHP 5.6.7 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-socks5-hostname">
    <strong><code>CURLPROXY_SOCKS5_HOSTNAME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 5.5.23 and PHP 5.6.7 and cURL 7.18.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlheader-separate">
    <strong><code>CURLHEADER_SEPARATE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.37.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlheader-unified">
    <strong><code>CURLHEADER_UNIFIED</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.37.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlproto-smb">
    <strong><code>CURLPROTO_SMB</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.40.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlproto-smbs">
    <strong><code>CURLPROTO_SMBS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.0.7 and cURL 7.40.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-request-target">
    <strong><code>CURLOPT_REQUEST_TARGET</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.55.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-gssapi">
    <strong><code>CURLAUTH_GSSAPI</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.1
    </span>
   </dd>

  
  
   <dt id="constant.curle-weird-server-reply">
    <strong><code>CURLE_WEIRD_SERVER_REPLY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.51.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-content-length-download-t">
    <strong><code>CURLINFO_CONTENT_LENGTH_DOWNLOAD_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.55.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-content-length-upload-t">
    <strong><code>CURLINFO_CONTENT_LENGTH_UPLOAD_T</code></strong>
   (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.55.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-http-version">
    <strong><code>CURLINFO_HTTP_VERSION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.50.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-protocol">
    <strong><code>CURLINFO_PROTOCOL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-proxy-ssl-verifyresult">
    <strong><code>CURLINFO_PROXY_SSL_VERIFYRESULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-scheme">
    <strong><code>CURLINFO_SCHEME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-size-download-t">
    <strong><code>CURLINFO_SIZE_DOWNLOAD_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.50.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-size-upload-t">
    <strong><code>CURLINFO_SIZE_UPLOAD_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.50.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-speed-download-t">
    <strong><code>CURLINFO_SPEED_DOWNLOAD_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.50.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-speed-upload-t">
    <strong><code>CURLINFO_SPEED_UPLOAD_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.50.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-max-read-size">
    <strong><code>CURL_MAX_READ_SIZE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.53.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-abstract-unix-socket">
    <strong><code>CURLOPT_ABSTRACT_UNIX_SOCKET</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.53.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-keep-sending-on-error">
    <strong><code>CURLOPT_KEEP_SENDING_ON_ERROR</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.51.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-pre-proxy">
    <strong><code>CURLOPT_PRE_PROXY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-cainfo">
    <strong><code>CURLOPT_PROXY_CAINFO</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-capath">
    <strong><code>CURLOPT_PROXY_CAPATH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-crlfile">
    <strong><code>CURLOPT_PROXY_CRLFILE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-keypasswd">
    <strong><code>CURLOPT_PROXY_KEYPASSWD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-pinnedpublickey">
    <strong><code>CURLOPT_PROXY_PINNEDPUBLICKEY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-sslcert">
    <strong><code>CURLOPT_PROXY_SSLCERT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-sslcerttype">
    <strong><code>CURLOPT_PROXY_SSLCERTTYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-ssl-cipher-list">
    <strong><code>CURLOPT_PROXY_SSL_CIPHER_LIST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-sslkey">
    <strong><code>CURLOPT_PROXY_SSLKEY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-sslkeytype">
    <strong><code>CURLOPT_PROXY_SSLKEYTYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-ssl-options">
    <strong><code>CURLOPT_PROXY_SSL_OPTIONS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-ssl-verifyhost">
    <strong><code>CURLOPT_PROXY_SSL_VERIFYHOST</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-ssl-verifypeer">
    <strong><code>CURLOPT_PROXY_SSL_VERIFYPEER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-sslversion">
    <strong><code>CURLOPT_PROXY_SSLVERSION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-tlsauth-password">
    <strong><code>CURLOPT_PROXY_TLSAUTH_PASSWORD</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-tlsauth-type">
    <strong><code>CURLOPT_PROXY_TLSAUTH_TYPE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-tlsauth-username">
    <strong><code>CURLOPT_PROXY_TLSAUTH_USERNAME</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-socks5-auth">
    <strong><code>CURLOPT_SOCKS5_AUTH</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.55.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-suppress-connect-headers">
    <strong><code>CURLOPT_SUPPRESS_CONNECT_HEADERS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curlproxy-https">
    <strong><code>CURLPROXY_HTTPS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-max-default">
    <strong><code>CURL_SSLVERSION_MAX_DEFAULT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-max-none">
    <strong><code>CURL_SSLVERSION_MAX_NONE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-max-tlsv1-0">
    <strong><code>CURL_SSLVERSION_MAX_TLSv1_0</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-max-tlsv1-1">
    <strong><code>CURL_SSLVERSION_MAX_TLSv1_1</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-max-tlsv1-2">
    <strong><code>CURL_SSLVERSION_MAX_TLSv1_2</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-max-tlsv1-3">
    <strong><code>CURL_SSLVERSION_MAX_TLSv1_3</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.54.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-sslversion-tlsv1-3">
    <strong><code>CURL_SSLVERSION_TLSv1_3</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curl-version-https-proxy">
    <strong><code>CURL_VERSION_HTTPS_PROXY</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.52.0
    </span>
   </dd>

  
  
   <dt id="constant.curlauth-bearer">
    <strong><code>CURLAUTH_BEARER</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0.
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-appconnect-time-t">
    <strong><code>CURLINFO_APPCONNECT_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-connect-time-t">
    <strong><code>CURLINFO_CONNECT_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-filetime-t">
    <strong><code>CURLINFO_FILETIME_T</code></strong>
   (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.59.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-namelookup-time-t">
    <strong><code>CURLINFO_NAMELOOKUP_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-pretransfer-time-t">
    <strong><code>CURLINFO_PRETRANSFER_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-redirect-time-t">
    <strong><code>CURLINFO_REDIRECT_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-starttransfer-time-t">
    <strong><code>CURLINFO_STARTTRANSFER_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-total-time-t">
    <strong><code>CURLINFO_TOTAL_TIME_T</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-lock-data-connect">
    <strong><code>CURL_LOCK_DATA_CONNECT</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.10.0
    </span>
   </dd>

  
  
   <dt id="constant.curlinfo-lock-data-psl">
    <strong><code>CURL_LOCK_DATA_PSL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-disallow-username-in-url">
    <strong><code>CURLOPT_DISALLOW_USERNAME_IN_URL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-dns-shuffle-addresses">
    <strong><code>CURLOPT_DNS_SHUFFLE_ADDRESSES</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.60.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-happy-eyeballs-timeout-ms">
    <strong><code>CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.59.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-haproxyprotocol">
    <strong><code>CURLOPT_HAPROXYPROTOCOL</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.60.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-proxy-tls13-ciphers">
    <strong><code>CURLOPT_PROXY_TLS13_CIPHERS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-ssh-compression">
    <strong><code>CURLOPT_SSH_COMPRESSION</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.56.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-timevalue-large">
    <strong><code>CURLOPT_TIMEVALUE_LARGE</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.59.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-tls13-ciphers">
    <strong><code>CURLOPT_TLS13_CIPHERS</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.61.0
    </span>
   </dd>

  
  
   <dt id="constant.curlssh-auth-gssapi">
    <strong><code>CURLSSH_AUTH_GSSAPI</code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.0 and cURL 7.58.0
    </span>
   </dd>

  
  
   <dt id="constant.curlopt-http09-allowed">
    <strong><code>CURLOPT_HTTP09_ALLOWED </code></strong>
    (<span class="type">integer</span>)
   </dt>

   <dd>

    <span class="simpara">
     Available since PHP 7.3.15 and 7.4.3, respectively, and cURL 7.64.0
    </span>
   </dd>

  
 </dl>

</div>
</div></div></body></html>